Pipe bender



Patented Feb. 19, 1924.

LOUIS PETO, F VESTABURG, PENNSYLVANIA.

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. PIPE BENDER.

Application led January 31, 1923.

To o-ZZ whom if 'may concern.'

Be it known that I, Leurs Puro, a` citizen of Czechoslovakia, residing at Vestaburg, in the county of Washington and State of Pennsylvania, have invented certain new and usetul li'nprovements in Pipe Benders, of which the following is a specification.

This invention relates to improvements in pipe benders of the three-point jack type.

An important object of the invention is to provide a pipe bender ot a portable nature that is suitable for plumbers or electricians whiie working away from their home shop.

A 1further object ot the invention is to pr vide an extremely durable and ctticient device for this purpose which may be adapted to pipes ot a wide range of sizes.

Other objects and advantages of the invention will be apparent during the course ot the following description.

In the accompanying drawing forming a part ot' this speci fication and in which like numerals are employed to designate like parts throughout the same,

Figure l is a top plan view of the device embodying this invention, A

Fig. 2 is a side elevational view, partly in section, taken on lines II-H ot 1, and

Fig. 3 is a fragmentary end elevational view, partly in section, taken on lines lIt--III of Fig. 1.

In the drawing, wherein for the purpose of illustration is shown al preferred enibodiment ot this invention, the numeral 5 designates a substantially U-shaped frame that. is constructed oit any strong and rigid metal and embodies parallel spaced side arms 6 that are joined at their inner ends by the cross piece '7. The outer free ends of the side arms 6 are bent. upwardly at 8 and formed with an arcuate pocket 9 upon their inner vertical faces. Longitudinally extending slots 10 are formed in the side arms 6 for receiving guiding means assoc-iated with the moving jaw which will be described hereafter. The cross piece 7 is provided with a. boss l1 that is formed integrally therewith and extends at right angles therefrom. This boss is provided with a transverse squared opening 12 and av threaded opening 13 that are provided for accommodating portions of the movable jaw.

The movable aw embodies a head portion Serial No. 616,145.

14 that is provided with an arcuate pocket. 15, as best shown in Fig. 2, and a squared guide arm 16 that is adapted to slidably engage the square opening 12 formed in the boss 11.. Extending transversely through the head le is av cross arm 17 that extends laterally in opposite directions to terminate beyond the side arms 6. The outer ends ot this cross arm 17 are each provided with a link member 18 that extends through the slots 10 Jformed in the said arms (i. The tree ends ot' these link members are each provided with a headed pin or screw 1Q that is adapted to carry roller members 20, as

best shown in Fig. 3. It is to be understood that these link members 18 are provided for guiding the movement o'l the head member le and the roller members 2O will prevent binding' ot the said link members. There is further provided a forcing screw .f2-1 that is threaded through the open` ing 13 formed in the boss 11 and is provided with a squared head f'Z that is adapted to be engaged by a wrench or the like for turning the said screw. The inner end 253 of this forcing screw is adapted to engage witliin a socket 24: formed in the head lst, as best shown in Fig. 2.

In employing the device to bend a pipe, the said pipe section is placed into engagement with the arcuate pockets 9 formed in the upwardly bent ends 8 of the spaced side arms 6 and the arcuate pocket l5 formed in the movable head 14.i is brought into engagement with the pipe section by actuating the screw 21. It will readily be seen that by further turning the screw 9.1 the movable head let will be forced between the upwardly bent ends 8 ot the side arms 6 and will therefore bend or curve the said pipe section. The movable head portion 1li will bc guided in its movement by the squared arm 16 that extends through the boss 11 and will be prevented from shifting laterally by the en gagement of the link members 18 with the walls of the slots 1() formed in the side arms G. It is to be understood that these link members 18 are. rigidly connected with the cross arm 1T which is in turn rigidly connected with the head portion 14, and that the manner ot forming these rigid connections is' not shown as it does not enter into the scope oit the invention.

lt is to be, understood that the torni ot this invention herewitl shown 'l and scribed is to be taken as the preterred embodiment of the same, and that various changes in the shape, size, and arrangement oi parts may be resorted to Without departing` from the spirit of the invention or the scope of the snbjoined claims.

Having thus described the invention, l claim l. ln a device of the cliaraeter described, a Ll-shaped frame embodying spaced side arms having longitudinally extending slots formed therein, a cross piece connecting said arms, a boss formed on said cross piece, and upwardly bent ends formed on said arms, a movable head supported by said boss, a cross arm carried by saidhead, a link inember carried by each end of said Cross arm, said link members projecting through the slots formed in said arms, pins carried by the free ends oic said link members, rollers carried by said pins, and means carried by said boss for moving` said head toward the upwardly bent ends formed on said side arms.

formed on said cross piece, and upwardly`-` extending hook-shaped ends formed on said 3Q arms, a movable jaw embodying a head having an arcuate pocket 'formed in its outer end and a guide arm extending` through an opening formed in said boss, a cross arm carried bysaid head, a depending member carried by each end of said cross arm and projecting through said longitudinal slots, means carried by the lower ends ofsaid depending members adapted to anti-friction,- ally engage the lovverY surfaces olsaid side arms, and a feed screw threadedly engagingY said upwardly extending boss and loosely 1 engaging said head or moving the latter toward said hool-shaped ends.

In testimony vvhereoi I ailix my signature.

LOUIS PETO. 

